<template>
  <div>
    <!-- 面包屑导航 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>用户管理</el-breadcrumb-item>
      <el-breadcrumb-item>用户列表</el-breadcrumb-item>
    </el-breadcrumb>
    <!-- 卡片视图区 -->
    <el-card>
      <!-- 搜索框和添加按钮 -->
      <el-row :gutter="20">
        <el-col :span="6">
          <el-input placeholder="请输入内容" @clear="search" clearable v-model="queryInfo.query">
            <el-button slot="append" icon="el-icon-search" @click="search"></el-button>
          </el-input>
        </el-col>
        <el-col :span="4">
          <el-button type="primary" @click="addDialogVisible=true">添加用户</el-button>
        </el-col>
      </el-row>
      <!-- 用户表格 -->
      <el-table :data="userList" border stripe>
        <el-table-column type="index" label="序号"></el-table-column>
        <el-table-column prop="username" label="姓名"></el-table-column>
        <el-table-column prop="email" label="邮箱"></el-table-column>
        <el-table-column prop="mobile" label="电话"></el-table-column>
        <el-table-column prop="role_name" label="角色"></el-table-column>
        <el-table-column label="状态">
          <template v-slot="scope">
            <el-switch v-model="scope.row.mg_state" @change="userStateChange(scope.row)"></el-switch>
          </template>
        </el-table-column>
        <el-table-column label="操作" width="180px">
          <template v-slot="scope">
            <el-button
              type="primary"
              size="mini"
              icon="el-icon-edit"
              @click="showEditDialog(scope.row.id)"
            ></el-button>
            <el-button
              type="danger"
              size="mini"
              icon="el-icon-delete"
              @click="removeUserBydId(scope.row.id)"
            ></el-button>
            <el-tooltip content="分配角色" placement="top" :enterable="false">
              <el-button
                type="warning"
                size="mini"
                icon="el-icon-setting"
                @click="setRole(scope.row)"
              ></el-button>
            </el-tooltip>
          </template>
        </el-table-column>
      </el-table>
      <!-- 分页 -->
      <el-pagination
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
        :current-page="queryInfo.pagenum"
        :page-sizes="[1, 2, 5, 10]"
        :page-size="queryInfo.pagesize"
        layout="total, sizes, prev, pager, next, jumper"
        :total="total"
      ></el-pagination>
    </el-card>
    <!-- 添加用户对话框 -->
    <el-dialog title="添加用户" :visible.sync="addDialogVisible" width="50%" @closed="addDialogClosed">
      <!-- 内容主体区 -->
      <el-form :model="addForm" :rules="addFormRules" ref="addFormRef" label-width="70px">
        <el-form-item label="用户名" prop="username">
          <el-input v-model="addForm.username"></el-input>
        </el-form-item>
        <el-form-item label="密码" prop="password">
          <el-input type="password" v-model="addForm.password"></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="addForm.email"></el-input>
        </el-form-item>
        <el-form-item label="手机" prop="mobile">
          <el-input v-model="addForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <!-- 底部区 -->
      <span slot="footer" class="dialog-footer">
        <el-button @click="addDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="addUser">确 定</el-button>
      </span>
    </el-dialog>

    <!-- 修改用户对话框 -->
    <el-dialog
      title="修改用户"
      :visible.sync="editDialogVisible"
      width="50%"
      @closed="editDialogClosed"
    >
      <!-- 内容主体区 -->
      <el-form :model="editForm" :rules="editFormRules" ref="editFormRef" label-width="70px">
        <el-form-item label="用户名">
          <el-input v-model="editForm.username" disabled></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="editForm.email"></el-input>
        </el-form-item>
        <el-form-item label="手机" prop="mobile">
          <el-input v-model="editForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <!-- 底部区 -->
      <span slot="footer" class="dialog-footer">
        <el-button @click="editDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="editUser">确 定</el-button>
      </span>
    </el-dialog>

    <!-- 分配角色对话框 -->
    <el-dialog
      title="分配角色"
      :visible.sync="setRoleDialogVisible"
      width="50%"
      @close="setRoleDialogClose"
    >
      <div>
        <p>当前用户：{{ this.userInfo.username}}</p>
        <p>当前角色：{{ this.userInfo.role_name}}</p>
        <p>
          分配角色：
          <el-select v-model="selectedRoleId" placeholder="请选择">
            <el-option
              v-for="item in rolesList"
              :key="item.id"
              :label="item.roleName"
              :value="item.id"
            ></el-option>
          </el-select>
        </p>
      </div>
      <span slot="footer" class="dialog-footer">
        <el-button @click="setRoleDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="saveRole">确 定</el-button>
      </span>
    </el-dialog>
  </div>
</template>
<script>
export default {
  name: 'User',
  data() {
    // 验证邮箱的规则
    var checkEmail = (rule, value, callback) => {
      const regEmail = /^([a-zA-Z0-9_-])+@([a-zA-Z0-9_-])+(\.[a-zA-Z0-9_-])+/
      if (regEmail.test(value)) {
        return callback()
      } else {
        callback(new Error('请输入合法的邮箱'))
      }
    }
    // 验证手机号的规则
    var checkMobile = (rule, value, callback) => {
      const regEmail = /^(0|86|17951)?(13[0-9]|15[0123456789]|17[678]|18[0-9]|14[57])[0-9]{8}$/
      if (regEmail.test(value)) {
        return callback()
      } else {
        callback(new Error('请输入合法的手机号'))
      }
    }

    return {
      queryInfo: {
        query: '',
        pagenum: 1,
        pagesize: 2
      },
      userList: [],
      total: 0,
      currentPage: 1,
      addDialogVisible: false,
      editDialogVisible: false,
      addForm: {
        username: '',
        password: '',
        email: '',
        mobile: ''
      },
      editForm: {},
      addFormRules: {
        username: [
          { required: true, message: '请输入用户名', trigger: 'blur' },
          {
            min: 3,
            max: 10,
            message: '用户名长度在3~10个字符之间',
            trigger: 'blur'
          }
        ],
        password: [
          { required: true, message: '请输入密码', trigger: 'blur' },
          {
            min: 3,
            max: 10,
            message: '密码长度在6~15个字符之间',
            trigger: 'blur'
          }
        ],
        email: [
          { required: true, message: '请输入邮箱', trigger: 'blur' },
          {
            validator: checkEmail,
            trigger: 'blur'
          }
        ],
        mobile: [
          { required: true, message: '请输入手机', trigger: 'blur' },
          {
            validator: checkMobile,
            trigger: 'blur'
          }
        ]
      },
      editFormRules: {
        email: [
          { required: true, message: '请输入邮箱', trigger: 'blur' },
          {
            validator: checkEmail,
            trigger: 'blur'
          }
        ],
        mobile: [
          { required: true, message: '请输入手机', trigger: 'blur' },
          {
            validator: checkMobile,
            trigger: 'blur'
          }
        ]
      },
      //控制分配权限对话框的显示和隐藏
      setRoleDialogVisible: false,
      //需要分配权限的用户信息
      userInfo: {},
      //所有角色的列表
      rolesList: [],
      //被选中的角色id
      selectedRoleId: ''
    }
  },
  created() {
    this.getUserList()
  },
  methods: {
    async getUserList() {
      const { data: res } = await this.axios.get('users', {
        params: this.queryInfo
      })
      console.log(res.data)
      if (res.meta.status !== 200) {
        return this.$message.error(res.meta.msg)
      } else {
        this.userList = res.data.users
        this.total = res.data.total
      }
    },
    handleSizeChange(newSize) {
      this.queryInfo.pagesize = newSize
      this.getUserList()
    },
    handleCurrentChange(newPage) {
      this.queryInfo.pagenum = newPage
      this.getUserList()
    },
    //监听switch开关状态
    async userStateChange(userinfo) {
      const { data: res } = await this.axios.put(
        `/users/${userinfo.id}/state/${userinfo.mg_state}`
      )
      if (res.meta.status !== 200) {
        userinfo.mg_state = !userinfo.mg_state
        return this.$message.error('更新用户状态失败')
      } else {
        this.$message.success('更新用户状态成功')
      }
    },
    search() {
      this.queryInfo.pagenum = 1
      this.getUserList()
    },
    addDialogClosed() {
      this.$refs.addFormRef.resetFields()
    },
    //点击按钮，添加新用户
    addUser() {
      this.$refs.addFormRef.validate(async valid => {
        if (!valid) {
          return
        } else {
          //可以发起添加用户的网络请求
          const { data: res } = await this.axios.post('users', this.addForm)
          if (res.meta.status !== 201) {
            this.$message.error('添加用户失败')
          } else {
            this.$message.success('添加用户成功')
            //关闭对话框
            this.addDialogVisible = false
            //重新获取用户列表数据
            this.getUserList()
          }
        }
      })
    },
    //展示编辑用户的对话框
    async showEditDialog(id) {
      const { data: res } = await this.axios.get(`users/${id}`)
      if (res.meta.status !== 200) {
        this.$message.error('获取用户信息失败')
      } else {
        this.editDialogVisible = true
        this.editForm = res.data
      }
    },
    //监听修改用户对话框的关闭事件
    editDialogClosed() {
      this.$refs.editFormRef.resetFields()
    },
    //修改用户
    editUser() {
      this.$refs.editFormRef.validate(async valid => {
        if (!valid) {
          return
        } else {
          const { data: res } = await this.axios.put(
            `users/${this.editForm.id}`,
            {
              email: this.editForm.email,
              mobile: this.editForm.mobile
            }
          )
          if (res.meta.status !== 200) {
            this.$message.error('修改用户失败')
          } else {
            this.$message.success('修改用户成功')
            //关闭对话框
            this.editDialogVisible = false
            //重新获取用户列表数据
            this.getUserList()
          }
        }
      })
    },
    //根据id删除用户信息
    async removeUserBydId(id) {
      const result = await this.$confirm(
        '此操作将永久删除该用户, 是否继续?',
        '提示',
        {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning'
        }
      ).catch(error => error)

      //取消删除
      if (result !== 'confirm') {
        return this.$message.info('已经取消删除')
        //确认删除
      } else {
        const { data: res } = await this.axios.delete(`users/${id}`)
        if (res.meta.status !== 200) {
          this.$message.error('删除失败')
        } else {
          this.$message.success('删除成功')
          //重新获取数据
          this.getUserList()
        }
      }
    },
    //点击按钮弹出分配权限框
    async setRole(userInfo) {
      this.userInfo = userInfo
      //获取所有角色列表
      const { data: res } = await this.axios.get('roles')
      if (res.meta.status !== 200) {
        this.$message.error('查询角色列表失败')
      }
      this.rolesList = res.data
      this.setRoleDialogVisible = true
    },
    //
    setRoleDialogClose() {
      this.selectedRoleId = ''
    },
    //分配角色
    async saveRole() {
      if (!this.selectedRoleId) {
        return this.$message.error('请选择一个角色')
      }
      const { data: res } = await this.axios.put(
        `users/${this.userInfo.id}/role`,
        {
          rid: this.selectedRoleId
        }
      )
      if (res.meta.status !== 200) {
        return this.$message.error('分配角色失败')
      }
      this.$message.success('分配角色成功')
      this.getUserList()
      this.setRoleDialogVisible = false
    }
  }
}
</script>

<style lang="less" scoped>
</style>